Electrochemical synthesis of a composite of few-layer graphene structures with PdNi alloy nanoparticles and its electrocatalytic activity in the oxidation of methanol

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Nanocomposites of few-layer graphene structures with PdNi alloy nanoparticles were synthesized using the electrochemical dispersion method. The chemical modification of composites was shown to lead to a significant increase in their electrocatalytic activity towards the methanol oxidation reaction.

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Sobre autores

V. Kochergin

Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry of Russian Academy of Sciences

Email: rmanzhos@yandex.ru
Rússia, Chernogolovka, Moscow oblast

N. Komarova

Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry of Russian Academy of Sciences

Email: rmanzhos@yandex.ru
Rússia, Chernogolovka, Moscow oblast

A. Kotkin

Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry of Russian Academy of Sciences

Email: rmanzhos@yandex.ru
Rússia, Chernogolovka, Moscow oblast

I. Khodos

Institute of Microelectronics Technology and High Purity Materials of Russian Academy of Sciences

Email: rmanzhos@yandex.ru
Rússia, Chernogolovka, Moscow oblast

R. Manzhos

Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry of Russian Academy of Sciences

Autor responsável pela correspondência
Email: rmanzhos@yandex.ru
Rússia, Chernogolovka, Moscow oblast

A. Krivenko

Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry of Russian Academy of Sciences

Email: rmanzhos@yandex.ru
Rússia, Chernogolovka, Moscow oblast

Bibliografia

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  4. Burhan, H., Cellat, K., Yılmaz, G., and Şen, F., Chapter 3 - Direct methanol fuel cells (DMFCs), In: Akay, R.G., Yurtcan, A.B. editors, Direct liq. Fuel cells. Academic Press, 2021, p. 71.
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  7. Calderón, J.C., Nieto-Monge, M.J., Pérez-Rodríguez, S., Pardo, J.I., Moliner, R., and Lázaro, M.J., Palladium–nickel catalysts supported on different chemically-treated carbon blacks for methanol oxidation in alkaline media, Int. J. Hydrogen Energy, 2016, vol. 41, p. 19556.
  8. Lu, S., Li, H., Sun, J., and Zhuang, Z., Promoting the methanol oxidation catalytic activity by introducing surface nickel on platinum nanoparticles, Nano Res., 2017, vol. 11, p. 2058.
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  10. Фаддеев, Н.А., Куриганова, А.Б., Леонтьев, И.Н., Смирнова, Н.В. Электроактивные материалы на основе палладия для экологического катализа. Доклады РАН. Химия, науки о материалах. 2022. T. 507. С. 59. [Faddeev, N.A., Kuriganova, A.B., Leont’ev, I.N., and Smirnova, N.V., Palladium-based electroactive materials for environmental catalysis, Dokl. Phys. Chem., 2022, vol. 507, p. 139.]
  11. Pavlets, A.S., Alekseenko, A.A., Tabachkova, N.Yu., Safronenko, O.I., Nikulin, A.Yu., Alekseenko, D.V., and Guterman, V.E., A novel strategy for the synthesis of Pt–Cu uneven nanoparticles as an efficient electrocatalyst toward oxygen reduction, Int. J. Hydrogen Energy, 2021, vol. 46, p. 5355.
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  13. Kochergin, V.K., Manzhos, R.A., Khodos, I.I., and Krivenko A.G., One-step synthesis of nitrogen-doped few-layer graphene structures decorated with Mn 1.5 Co 1.5 O 4 nanoparticles for highly efficient electrocatalysis of oxygen reduction reaction, Mendeleev Commun., 2022, vol. 32, p. 494.
  14. Podlovchenko, B.I., Maksimov, Yu.M., Volkov, D.S., and Evlashin, S.A., Codeposition of Pd and Pb and electrocatalytic properties of their composite, J. Electroanal. Chem., 2020, vol. 858, p. 113787.
  15. Манжос, Р.А., Кочергин, В.К., Кривенко, А.Г., Ходос, И.И., Карабулин, А.В., Матюшенко В.И. Окисление формальдегида на PdNi-нанонитях, синтезированных в сверхтекучем гелии. Электрохимия. 2023. Т. 59. С. 554. [Manzhos, R.A., Kochergin, V.K., Krivenko, A.G., Khodos, I.I., Karabulin, A.V., and Matyushenko, V.I., Oxidation of formaldehyde on PdNi nanowires synthetized in superfluid helium, Russ. J. Electrochem., 2023, vol.

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2. Fig. 1. SEM images of PdNi/MGS (a) and PdNimod/MGS (b) samples.

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3. Fig. 2. TEM images of PdNi/MGS (a) and PdNimod/MGS (b) samples. The corresponding electron diffraction patterns are shown in the insets.

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4. Fig. 3. (a) CVA for PdNi/MGS (1) and PdNimod/MGS (2), deaerated solution of 0.1 M KOH, 50 mV/s. (b) Oxidation of methanol on PdNi/MGS (1), PdNimod/MGS (2) and Pt/C (3), deaerated solution of 0.1 M KOH + 1 M CH3OH, 50 mV/s, 2000 rpm.

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